A: That’s normal for MediaTek. Use SP Flash Tool in "Download" mode, not EDL. ISP pinout is for when even MTK USB Port is dead.
| Pin name | Location | Color coding (wires) | Alternative test point | |----------|----------|----------------------|------------------------| | | Resistor R2403 (one side connected to eMMC pin 4) | White | Directly on eMMC pad 4 | | CMD | Resistor R2405 (eMMC pin 3) | Purple | TP1103 (marked "CM") | | D0 | Resistor R2406 (eMMC pin 7) | Orange | TP1105 (marked "D0") | | VCC (3.3V) | Capacitor C2401 (positive leg) | Red | Test point V_BAT (do not exceed 3.3V) | | GND | Any unshielded copper area near the eMMC | Black | Screw hole mounting pad | lg k41s isp pinout
A: No. If the eMMC is physically shorted or corrupted beyond logical error, you must replace it (chip-off). The ISP method only works if the eMMC responds to commands. A: That’s normal for MediaTek
| Signal | Function | Why it matters | |--------|----------|----------------| | CLK | Clock line (100kHz-200MHz) | Synchronizes data transfer | | CMD | Command/Response line | Sends host commands | | D0 | Data line 0 | Transfers boot data and partitions | | VCC (3.3V) | Power supply | Powers the eMMC internally | | GND | Ground | Completes the circuit | | Pin name | Location | Color coding
Use MTK Meta Mode via UART or force BROM mode by shorting CLK to GND for 2 seconds during power-on. With ISP, you can bypass this by writing a patched preloader with SLA disabled. Look for preloader_mt6762_LMK410hm.bin from custom sources.
October 2025 Tested firmware: V20b (Android 10) and V30a (Android 11) Contributors: HwRepair Team, JTAG Community Forum For professional repair shops, consider investing in a commercial ISP adapter (e.g., Octoplus Box LG cable). It reduces soldering time to under 2 minutes. This pinout is also compatible with LG K51S (LM-K500) and LG K61 – but confirm resistor IDs first.